Hi All I am new to drools and have started with Drools Guvnor . I am trying to create DSL based on the sample examples in guvnor. I have Customer as "declarative fact model" and 2 fields within it totalItenmsPrice (integer) and discount(boolean) I have created a DSL which contains the below code. I need to check if the value of totalItenmsPrice is greater than 100 then give discount to customer [when]total cost of purchased items is greater than {num}=cust:Customer( totalItenmsPrice > {num}) [then]Give discount to customer =cust.setDiscount(true) and when I specify the value of num as 100 in rule editor it doenst allow. I am not familiar with DSL syntax . Can someone plz look into this. Nilima =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you